vellerbee

Hello, I have had a problem where when trying to start my car (1996 Mustang GT) unless my foot is on the gas it stalles. And while driving it I have to keep my foot on the gas or it stalls so when im trying to brake I have to put it in neutral and apply the brakes while keeping my foot on the gas. What could be causing this? It used to only do it once in a great while but now everytime I go to drive it, I have to do this.

school boy

make sure the iac is functioning correctly. if not, try cleaning it or placing it.

FAKnGT

Exactly what School boy said. If you have to replace it, it's like $40. And best to buy it new.

YellowRoushPony9477

Another issue could be is to clean out your throttle body. My 03 does this occasionally. Try cleaning out the throttle body/intake with cleaner and that should fix it.

03gt04mach1

Make sure it's Throttle Body Cleaner, and 'NOT' Carb Cleaner! There is a difference. Carb Cleaner will remove the coating.

302_Mustang

And if you do replace it make sure you go motorcraft. My aftermarket iac would cause hanging RPM

slvr03gt

I just bought my 03 gt, iac replaced with an off-brand model, but it has an adjustment with a small cover over it.

SXGT

i had the same issue. I took the IAC off and cleaned it with seafoam. problem solved.

slvr03gt

If you look at the end of your iac valve, there is a round piece on the end. That piece is covering an adjustment screw. Start by setting your idle screw at 1/2 turn just after it makes contact with the throttle. Then turn the iac adjustment screw (clockwise if your idle is hanging) to your preference above where the ac/fan/power steering won't stall it. That's your lowest recommended idle.

dragman72

I had that happen in my 2000 gt. Ford replacement back then cost me around $100 I think